My wife, daughter and I received our PR cards on Nov 20 but my son's card was delayed due to some unknown reason. We landed in Toronto on Sep 28 and flew to Vancouver the same day after completing landing formalities.
Just got off the phone with CIC (2:54 pm Pacific Standard Time) regarding my son's PR card. I was told that there are no problems and we should expect it by the start of January, 2016. The last time I called (on Nov 26), I was told that I should call back on Dec 10 if I don't receive it by then.
I hope I don't have to call again at the end of Dec to get a new deadline of start of Feb.